Add opinion Tables and request

src/main/resources/sql/functions/opinion/count_opinion.sql

@@ -0,0 +1,27 @@
+create or replace function count_opinion(_target_id uuid, out resource json)
+    language plpgsql as
+$$
+declare
+    agg jsonb;
+    empty jsonb = '[]'::jsonb;
+begin
+    select jsonb_object_agg(t.label, t.total)
+    into agg
+    from (
+        select
+            count(o.opinion) as total,
+            ol.name as label
+        from opinion o
+        join opinion_list ol on o.opinion = ol.id
+        where o.target_id = _target_id
+        group by ol.name
+        order by ol.name
+    ) t;
+
+    resource = empty || coalesce(agg, empty);
+end;
+$$;
+
+-- drop function if exists count_opinion(uuid);
+
+-- select * from count_opinion('ced1563f-ecf5-4f11-8518-8aeceff3c13a');

src/main/resources/sql/functions/opinion/opinion.sql

@@ -0,0 +1,17 @@
+create or replace function opinion(reference regclass, _target_id uuid, _created_by_id uuid, _opinion uuid, out resource json)
+    language plpgsql as
+$$
+begin
+    if reference = 'article'::regclass then
+        insert into opinion_on_article (created_by_id, target_id, opinion)
+        values (_created_by_id, _target_id, _opinion)
+        on conflict (created_by_id, target_id, opinion) do nothing;
+    else
+        raise exception '% no implemented for opinion', reference::text;
+    end if;
+
+    select count_opinion(_target_id) into resource;
+end;
+$$;
+
+-- drop function if exists vote(regclass,uuid,uuid,integer,boolean);

src/main/resources/sql/migrations/0000-init_schema.down.sql

@@ -2,6 +2,10 @@
 drop table if exists resource_view;
 
 -- Extra resources
+drop table if exists opinion_on_article;
+drop table if exists opinion;
+drop table if exists opinion_list;
+
 drop table if exists follow_article;
 drop table if exists follow_constitution;
 drop table if exists follow_citizen;

src/main/resources/sql/migrations/0000-init_schema.up.sql

@@ -503,6 +503,32 @@ create table resource_view
     ip            cidr                                   null
 );
 
+create table opinion_list
+(
+    id         uuid        default uuid_generate_v4() not null primary key,
+    name       text                                   not null,
+    target     text                                   null,
+    created_at timestamptz default now()              not null,
+    deleted_at timestamptz                            null
+);
+
+create table opinion
+(
+    opinion uuid not null references opinion_list (id),
+    foreign key (created_by_id) references citizen (id),
+    primary key (id),
+    unique (created_by_id, target_id, opinion)
+) inherits (extra);
+
+create table opinion_on_article
+(
+    target_reference regclass default 'article'::regclass not null,
+    foreign key (opinion) references opinion_list (id),
+    foreign key (target_id) references article (id),
+    foreign key (created_by_id) references citizen (id),
+    primary key (id),
+    unique (created_by_id, target_id, opinion)
+) inherits (opinion);
 
 
 --------------

src/test/sql/opinion.sql

@@ -0,0 +1,89 @@
+do
+$$
+declare
+    created_user     json  := '{"username": "george", "plain_password": "azerty", "roles": ["ROLE_USER"]}';
+    created_user2    json  := '{"username": "george2", "plain_password": "azerty", "roles": ["ROLE_USER"]}';
+    _citizen_id      uuid;
+    _citizen_id2     uuid;
+    created_citizen json := $json$
+    {
+      "name": {
+        "first_name": "George",
+        "last_name": "MICHEL"
+      },
+      "birthday": "2001-01-01",
+      "email":"george.michel@gmail.com"
+    }
+    $json$;
+    created_citizen2 json := $json$
+    {
+      "name": {
+        "first_name": "George2",
+        "last_name": "MICHEL2"
+      },
+      "birthday": "2001-01-02",
+      "email":"george.michel2@gmail.com"
+    }
+    $json$;
+    created_article  json := $json$
+    {
+      "version_id": "933b6a1b-50c9-42b6-989f-c02a57814ef9",
+      "title": "Love the world",
+      "anonymous": false,
+      "content": "bla bal bla",
+      "tags": [
+        "love",
+        "test"
+      ],
+      "draft":false
+    }
+    $json$;
+    opinion1 uuid = uuid_generate_v4();
+    opinion2 uuid = uuid_generate_v4();
+begin
+    -- insert user for context
+    select insert_user(created_user) into created_user;
+    select insert_user(created_user2) into created_user2;
+    created_citizen := jsonb_set(created_citizen::jsonb, '{user}'::text[], jsonb_build_object('id', created_user->>'id'), true)::json;
+    created_citizen2 := jsonb_set(created_citizen2::jsonb, '{user}'::text[], jsonb_build_object('id', created_user2->>'id'), true)::json;
+
+    -- insert new citizen for context
+    select upsert_citizen(created_citizen) into created_citizen;
+    select upsert_citizen(created_citizen2) into created_citizen2;
+    _citizen_id := created_citizen->>'id';
+    _citizen_id2 := created_citizen2->>'id';
+    created_article := jsonb_set(created_article::jsonb, '{created_by}'::text[], jsonb_build_object('id', _citizen_id::text), true)::json;
+    assert created_article#>>'{created_by, id}' = _citizen_id::text, format('citizenId in article must be the same as citizen, %s != %s', created_article#>>'{created_by, id}', _citizen_id::text);
+    -- upsert article
+    select upsert_article(created_article) into created_article;
+
+
+    insert into opinion_list(id, name, target)
+    values (opinion1, 'Opinion1', (created_article->>'id')::uuid);
+
+    insert into opinion_list(id, name, target)
+    values (opinion2, 'Opinion2', (created_article->>'id')::uuid);
+
+    insert into opinion_list(name, target)
+    values ('Opinion3', (created_article->>'id')::uuid);
+
+    perform opinion(
+        reference => 'article'::regclass,
+        _target_id => (created_article->>'id')::uuid,
+        _created_by_id => _citizen_id,
+        _opinion => opinion1
+    );
+    assert (select count(*) = 1 from opinion_on_article), 'opinion must be inserted';
+    assert (select opinion = opinion1 from opinion_on_article limit 1), 'opinion must be inserted';
+
+
+    -- delete vote and context
+    delete from opinion;
+    delete from opinion_list;
+    delete from article;
+    delete from citizen;
+    delete from "user";
+
+    raise notice 'opinion test pass';
+end;
+$$;